FR377846A - Process for the manufacture of filaments of incandescent electric lamps made of tungsten or an alloy of this metal - Google Patents

Process for the manufacture of filaments of incandescent electric lamps made of tungsten or an alloy of this metal

Info

Publication number
FR377846A
FR377846A FR377846DA FR377846A FR 377846 A FR377846 A FR 377846A FR 377846D A FR377846D A FR 377846DA FR 377846 A FR377846 A FR 377846A
Authority
FR
France
Prior art keywords
filaments
tungsten
alloy
manufacture
metal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
Other languages
French (fr)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens and Halske AG
Siemens AG
Original Assignee
Siemens and Halske AG
Siemens AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Siemens and Halske AG, Siemens AG filed Critical Siemens and Halske AG
Application granted granted Critical
Publication of FR377846A publication Critical patent/FR377846A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K3/00—Apparatus or processes adapted to the manufacture, installing, removal, or maintenance of incandescent lamps or parts thereof
    • H01K3/02—Manufacture of incandescent bodies

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
FR377846D 1906-05-19 1907-05-15 Process for the manufacture of filaments of incandescent electric lamps made of tungsten or an alloy of this metal Expired FR377846A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE377846X 1906-05-19

Publications (1)

Publication Number Publication Date
FR377846A true FR377846A (en) 1907-09-16

Family

ID=1424241

Family Applications (1)

Application Number Title Priority Date Filing Date
FR377846D Expired FR377846A (en) 1906-05-19 1907-05-15 Process for the manufacture of filaments of incandescent electric lamps made of tungsten or an alloy of this metal

Country Status (1)

Country Link
FR (1) FR377846A (en)

Similar Documents

Publication Publication Date Title
FR377846A (en) Process for the manufacture of filaments of incandescent electric lamps made of tungsten or an alloy of this metal
FR388161A (en) Process for the production of filaments of metal alloys for electric incandescent lamps
FR373950A (en) Manufacturing process of metallic tungsten filaments for incandescent electric lamps
FR405324A (en) Process for processing tungsten metal filaments for incandescent electric lamps
FR418964A (en) Process for the manufacture of incandescent lamps with metal filaments
FR420891A (en) Process for the manufacture of filaments for incandescent electric lamps, by the use of an auxiliary metal
FR406981A (en) Manufacturing process of metal filaments for incandescent electric lamps
FR382257A (en) Process for the manufacture of filaments of poorly fusible metals drawn into wires for electric incandescent lamps
FR373671A (en) Manufacturing process of particularly fine metal filaments for incandescent electric lamps
FR382898A (en) Process for the manufacture of filaments for incandescent electric lamps
FR338362A (en) Process for the manufacture of incandescent lamps with metal wires
FR383822A (en) Process for the manufacture of filaments for incandescent electric lamps
FR413819A (en) Process for manufacturing supports for metal filaments of incandescent electric lamps
FR15213E (en) Process for the manufacture of incandescent lamps with metal filaments
FR374543A (en) Manufacturing process of tungsten or molybdenum filaments for incandescent electric lamps
FR394302A (en) Process for the manufacture of filaments of electric incandescent lamps
FR394823A (en) Method for preventing the metallic filaments of electric incandescent lamps from volatilizing
FR429850A (en) Process for the manufacture of metal filaments for electric incandescent lamps
FR405323A (en) Process for obtaining pure metallic tungsten for the manufacture of filaments of electric incandescent lamps
FR441914A (en) Manufacturing process of ductile filaments for incandescent lamps, starting from metals or metal alloys which are difficult to melt
FR384414A (en) Process for manufacturing filament wires for electric lamps with hardly fusible metals or metal oxides
FR12119E (en) Method for preventing the metallic filaments of electric incandescent lamps from volatilizing
FR370790A (en) Process for manufacturing filaments of tungsten, molybdenum or alloys of these two metals for incandescent lamps
FR398247A (en) Process for the production of flat metal filaments for incandescent lamps
FR401711A (en) Process for the manufacture of incandescent lamps